luckily it doesnt look like a splash signing is all that necessary. I hope we try to shore up at least one of the positions (with a starter) before the draft though: ILB, S, TE. ILB looks like the best spot to plug the hole, theres a ton of options out there, varying in all capacities.
ILB candidates: Kevin Minter, Navorro Bowman, Zach Brown, Demario Davis. Karlos Dansby (does he ever age? should be a willing 1 year stopgap at his age), Korey Toomer (read good things about him from Chargers forums, seems under the radar relative to a deep ILB free agent group. Would be my pick as a good starter within a medium/medium low range pricetag)
S candidates: Morgan Burnett (Underrated safety, i think my fellow Wisconsin natives can back me up on that one), Reggie Nelson (Age and playing on a horrid defense could bring his pricetag down. Would be a great stopgap), TJ Ward (playing on a forgettable team and a little drama with being miffed about being booted from the Broncos could bring his pricetag down. He is a former pro bowler after all), Eric Reid (Another former pro bowler as a rookie. Really smart, with desirable physicality if were worried about losing that with Mitchell. Played linebacker in subpackages for the 49ers so it could kill 2 birds with 1 stone for us in some capacity. I think i brought him up a while back as a realistic option), Tre Boston (1 hit wonder/Product of a really underrated front 7? Or is he a young kid on the up?), Lamarcus Joyner (If we wanted to go balls to the balls in free agency like last season for Ben's ride into the sunset, you go right here. Played CB/S in college and played CB for 3 seasons before blossoming as a safety this season. Never going to happen. Free agent blue balls, brought to you by, me)
TE candidates: Jimmy Graham (Anyone want to have another go at an expensive, talented, and injury prone tight end

), Tyler Eifert (How many times do you want your heart broken by a talented but injury prone tight end)